京都大学 / 0048 / 新制・課程博士 / 博士(地球環境学) / 甲第18668号 / 地環博第126号 / 新制||地環||26(附属図書館) / 31582 / 京都大学大学院地球環境学舎環境マネジメント専攻 / (主査)教授 渡邉 紹裕, 准教授 西前 出, 准教授 橋本 禅 / 学位規則第4条第1項該当 / Doctor of Global Environmental Studies / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第19325号 / 農博第2146号 / 新制||農||1036(附属図書館) / 学位論文||H28||N4953(農学部図書室) / 32327 / 京都大学大学院農学研究科地域環境科学専攻 / (主査)教授 縄田 栄治, 教授 舟川 晋也, 教授 神﨑 護 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第20816号 / 農博第2256号 / 新制||農||1055(附属図書館) / 学位論文||H30||N5098(農学部図書室) / 京都大学大学院農学研究科森林科学専攻 / (主査)教授 神﨑 護, 教授 北島 薫, 教授 德地 直子 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DGAM

京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第21164号 / 農博第2290号 / 新制||農||1060(附属図書館) / 学位論文||H30||N5138(農学部図書室) / 京都大学大学院農学研究科地域環境科学専攻 / (主査)教授 舟川 晋也, 教授 縄田 栄治, 教授 北山 兼弘 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DGAM

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Berichte: Nährstoffgehalte der Fruchtarten im Ökologischen Landbau --- Wirkungsgrad organischer Düngemittel auf Ertrag und Qualität von Kartoffeln im Ökologischen Landbau --- Bekämpfung der Kraut- und Knollenfäule im Ökokartoffelanbau --- Anforderungen an die Humusbilanzierung in der Praxis des Ökologischen Landbaus --- Zur Intensität des Striegeleinsatzes gemessen an der Bodenbewegung unter Laborbedingungen und an einem Feldbestand von Wintergerste

Understanding the response of soil microbial communities to various environmental stresses is of current interest, because of their pivotal role in nutrient cycling, soil organic matter mineralization and influence on plant growth. Determining the affect of several biotic and abiotic factors on soil microbial communities is the overall objective of the study. The specific goals are to determine 1) the response of microbial communities to water deficit in soil and 2) how the presence of a rich biotic community determines the direction of microbial community development in cultures. Both goals are novel and unique contributions to understanding microbial ecology in soil. Dynamics in water potentials due to drying and rewetting of soil impose significant physiological challenges to soil microorganisms. To cope with these fluctuations, many microorganisms alter the chemistry and concentration of their cytoplasmic contents. The aim of this research is to understand how the microbial biomass and their cytoplasm change in response to water potential deficits under in situ soil conditions. To address this objective we characterized intracellular and extracellular metabolites in moist, dry and salt stressed soils. Our results provided the first direct evidence that microbial communities in soil in situ utilize sugars and sugar alcohols to cope with low water potential. While the cultivation and isolation of microorganisms is essential to completely explore their physiology and ecology, 99% of soil microbes resist growing in cultures. Presence of very unnatural conditions in the culture plates was considered as main reason for low cultivability. Thus, a culture-based study was conducted whereby microorganisms were grown in association with their native habitat with an objective of mimicking native conditions to promote the growth of previously uncultivated microorganisms. Moreover, the importance of biotic communities (microbe-microbe) and abiotic soil effects were assessed on bacterial growth. Our results strongly indicate that the presence of living microbial community in the vicinity of the target culture resulted in the cultivation of novel members of rare bacterial taxa from phyla Verrucomicrobia, Bacteroidetes, Proteobacteria, and Planctomycetes. These results emphasize the need to develop new culturing methods to tap the hidden microbial potential for emerging anthropogenic needs.

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In a development area of Trollbäcken, a suburb half an hour south of central Stockholm, I have created a sustainable housing project in the form of a byggemenskap/baugemeinschaften with a focus on sustainability. With the help of friends and family members and their wishes for a future home as basis for my programme, I investigated what sustainable housing could be with a special interest in the relationship between material and immaterial sustainability, between the buildings and the community that inhabits and maintains them, aiming to create a built environment that supports the sustainable lifestyles of the residents.